Electric vibrator fob



w. PUTKOWSKL ELECTRIC VIBRATOR FOR RETOUCHING IMPLEMENTS.

APPLICATION FILED IAY 5. I919- 1,325,375. Patented Dec. 16,1919.

I4- I2 II a z a 1 l a Y WITNESSES INVENTOR MCI/41V Pur/mw/r/ By p ATTORNEY WACLAW PUTKOWSKI,

0F JERSEY CITY, NEW JERSEY.

ELECTRIC VIBRATOR FOR RETOUCHING IMPLEMENTS.

Application filed. May 5, 1919.

To all whom it may concern:

Be it known that I, WACLAW PUTKowsKI, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and Improved Electric Vibrator for Betouching Implements, of which the followingis a full, clear, and exact description.

This invention relates to an electric vibrator for retouching devices and has for an object the provision of an improved construction which will properly operate, but will be comparatively noiseless.

Another object in view is to provide a vibrator for a retouching device for causing the retouching device to vibrate without an appreciable noise.

In the accompanying drawing:

Figure 1 is a longitudinal vertical section through a retouching device disclosing an embodiment of the invention applied thereto.

Fig. 2 is an enlarged side view of the vibrating mechanism shown in connection with Fig. 1.

In preparing the plates for photographs it is necessary in many instances to manually retouch or reform the picture or configuration on the printing plate in order that the finished article may appear as it should. This formerly was done by hand by placing small dots on the plate and arranging the dots to give the proper shaded effect for finishing the picture or other configuration. Later vibrating means were provided for vibrating the pencil or retouching instrument, said vibrating implement including an electrically operated hammer striking against the end or against a certain part of the retouching device. As the end of the retouching device is always near the ear of the operator the noise of the hammer was extremely objectionable. In the present invention the objectionable noise has been overcome while the vibrating effect has been retained.

Referring to the accompanying drawing by numerals, 1 indicates a shell which has at the lower end a nozzle 2 with a pencil gripping member 3. These members 1 to 3 inclusive are old and well known and could be used manually as retouching was origially done. However the vibrating device 1 is provided in the end of the casing 1 opposite the end carrying the pencil 5. This vibrating device consists of an electro-mag- Specification of Letters Patent.

Patented Dec. 16, 1919.

Serial No. 294,817.

net 6 having suitable ends 7 and 8, end 8 being threaded so as to screw into the threaded socket 9 of the fitting 10, which fitting in turn is screwed into the casing 1. Preferably an insulating block 11 is arranged on the outer end of fitting 10 to which binding posts 12 and 13 are secured so that current from wires 14: and 15 may freely pass into magnet 6. The core of magnet 6 is preferably provided with a threaded extension 16 which receives a small metal plate 17, preferably of brass, to which the spring 18 is riveted or otherwise rigidly secured. This spring may be brass or any desired material and carries an armature 19 of magnetic material at. its free end. It will be noted that the spring 18 is bent at points 20, 21, 22, 23, 24 and 25 whereby a very sensitive action is secured within certain limits. Ordinarily the spring will hold the armature 19 in the position shown in Figs. 1 and 2 of the drawing, but when the magnet is energized the magnet will draw the armature toward the threaded extension 16 until the armature strikes the cap 26 which may be of leather or other suitable material mounted on a rubber or other cushioning member 27. Both of these members, 26 and 27, are preferably in the form of washers and surround the extension 16. The electric current passing through wires 14 and 15 is alternating so that the armature is vibrated without a make and break or other more or less complicated mechanism. The vibration of the armature and the striking thereof against the cap 26 will shake the holder 1 and all parts connected therewith including the hand of the operator who steers or moves the retouching implement over the design to be retouched.

In operation the operator merely holds the point of the pencil or marking instrument 5 over the place desired to be retouched and the vibration will cause the pencil 5 to form the desired dots at the desired place. As just stated, the pencil is held above the parts to receive the dots and consequently during the vibration the hand is moved slightly by said vibration until the point 5 is contacting with the plate, paper or other article. As soon as the contact has been made the hand automatically moves back. This action is a continuous back and forth motion, though the operator-holds his hand as still as possible and maintains the same always in a given position so that the pencil 5 will be above the paper in case the current should be turned off.

Vhat I claim is:

1. A vibrator for retouching implements comprising an electro-magnet, means for leading electric current to said magnet, an armature arranged adjacent one end of said magnet, a spring normally supporting the armature in the air, said spring being substantially U-shaped with an armature carrying section extending substantially at right angles to the general direction of the magnet whereby a sensitive action is secured and a direct back and forth action of the armature is produced when current is turned on to the magnet, and a cap or bufier for preventing the armature from striking the electro-magnet When the magnet is energized.

2. A vibrator for retouching implements, said vibrator comprising an electro-magnet having an armature extension projecting from one end, a pair of bufiter rings arranged on'said extension and projecting beyond the extension, a spring carried by said magnet, and an armature supported by said spring a short distance from said bufl'er rings whereby When the armature is magnetized the armature will strike said bufier rings and vibrate the instrument Without noise.

3. A vibrator for retouching implements, said vibrator comprising an electro-magnet, a buffer member arranged on one end of the magnet, a spring carried by said magnet formed with a looped portion bent back upon itself forming a U-shaped structure, and an armature carried by the free end of said U-shaped structure, said spring normally holding the armature away from said bufi'er member.

4. A vibrator for retouching implements, said vibrator comprising an electro-magnet formed With an extension at one end, a rubber cushioning member surrounding said extension, a leather buffer member arranged below said rubber member and projecting beyond the extension, a spring, and an armature carried by said spring normally spaced from said buffer member.

WACLAVV PUTKOWSKI. 

